Jewel-piping machine



(No Model.) 3 Sheets-Sheet D. H. CHURCH.

.JBWELAPIPING MACHINE. No. 522,046. n Patented June 26, 1894.

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Patented June 26, 1894.

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D. H'. CHU JEWEL PIPING (No Model.)

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D. H. CHURCH.

- JEWEL PIPING MACHINE.

No. 522,046. Patented June 26,

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NITED STATES PATENT OFFICE.;

DUANE H. CHURCH, OF NEWTON, MASSACHUSETTS.

`JEWEL-PIPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 522,046, dated June 26,1894.

Application filed October 9, 1893. Serial No. 487,621. (No model.)

To all whom it may concern: l

Be it known that I, DUANE H. CHURCH, of Newton, in the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Jewel-Piping Machines, of which'the following isa specifi-l cation.

This invention relates to an improvement in the. class of machines shownin my former patent, No. 488,240, granted December 20, 1'892, and thepresent invention has reference more particularly to a machine forcarrying on the processk known as jewel-piping, which consists intreating jewel-settings to adapt them for properly receiving andsupporting the pinion, and the object of the invention is to providemeans whereby variations in the length of the pinion or in the 'distancebetween the shoulders thereof are compensated for in the travel of thetool, sothat, when the parts of the watch-movementare assembled, therewill be no undue end-shake. Y

To the above end, the invention consists in certain novelcombinations ofelements and constructions of parts hereinafter described and claimed.

The accompanying drawings illustrate a construction for carrying out theinvention.

Figure l shows a front elevation of a machine embodying the invention.Fig. 2 shows a top plan view. Fig. 3 shows an end elevation of themachine, as viewed from the left of Fig. 1. Fig. 4 shows an endelevation, as viewed from the right of Fig. 1. Fig. 5 shows alongitudinal section of the machine. Fig. 6 shows a cross-section, online 6--6 of Fig. 5. Fig. 7 shows a section on line 7-7 of Fig. 2. Fig.8 shows detail Vviews of an adjusting annulus. Fig. 9 shows a detailview of the calipering devices, with a pinion therein. Fig. 10 showssufficient of a watch-movement to illustrate the application of theinvention. Fig. 11 shows an enlarged view of the product of the machine.Figs. 12 and 13 show details illustrating the construction of thesupplytube, and the relation'of the carrying-jaws thereto.

The same letters of reference indicate the same parts in all thefigures.

A bracket 1, fastened to the stationary bed 2 of the machine, isconstructed to detachably support a barrel 3, in which the blanks arestacked in the form of short tubularpieces of brass containing thejewels.' The tube 3 has a stop-piece 3a, projecting out in front of itand connected with it by anarrow neck 3b, and the blanks are fed againstthis stop-piece, and, while extending across lthe space between the sameand the tube, are taken by the jaws hereinafter described. A pipe 4communicates with the said barrel and with a source of compressed air,and avalve in said pipe is opened periodically through' levers 5 and 6and pin 7 on a disk carried by the mainshaft 8, to admit pressure to thebarrelfor feeding the blanks. f

A rock-shaft 9, journaled in a head 10 on' the bed 2, carries at one'end an arm 11, to which are pivoted jaws 12, spring-actuated towardeach other, and adapted to pass between the stop-piece 3a and the tuloe3` and take the blank, said jaws passing on either side of the neck 31.The gripping ends of the jaws project beyond the edge ofthe arm 11, asbest seen in Fig. 4, and the blank a is held so thatit maybe acted uponfrom the rear side of the jaws. The arm 11 is swung away from the barrelto take a blank to the chuck 13, through the following means An arm 14,lixed on the outer end of the rock-shaft 9, ex-

.gages a lever 15, and a cam 16 on Vthe 'mainshaft 8 actuates saidlever. Aspring 17,`con-` nected with a projection'on the arm 14,retracts the arm 11. A bent tube 18, fastened to the arm 11, is adaptedto receive the work when it is discharged from the chuck, and direct itto a chute 19, down which it fallsint'o the head 20 on the bed 2, and isof any suitable construction, and is adapted to be opened and closedperiodically by a bell-crank lever 21, a pin 22 acting on said lever, anarm 23 acting on the pin and affixed to a'rock-shaft 24, which carriesanother arm 25 bearing on a cam '26 afxed to the main-shaft 8 (see Figs.54 and 6). `The base 27 of the chuck,against which the work abuts, isyieldingly supported by a spring 27, so that when the chuck is openedthe work will be ejected. The movement of the said yieldingbase may belimited by an adjustable stop 27h, or left as a variable base having nodefinite limit of yielding movement.

A plunger, to detach the work from the jaws l2 and enter it into thechuck, is supported in the head l0, and is composed of a rod 28, havingan end-piece 2S to act on the work, and a sleeve 29 surrounding thesame, the said two parts moving longitudinally to perform the functionabove mentioned, and being actuated through the following means: Avertical r0ck-shaft 30 carries an arm 3l at its upper end, which armengages a collar 32 affixed to the sleeve 29; and an arm 33, aiiixed tothe lower end of the said rock-shaft, engages a cam 34 on the main-shaft8. A spring 35 is connected with the arm 33, and aetuates the plungertoward the chuck, and the cam 34 retracts it.

The bed 2 supports a longitudinally-movable tool-slide or carriage 36,which is advanced by a spring 37, and retracted by a cam 38 on themain-shaft, acting through a sliding-bar 39, which carries an arm 40,abutting a shoulder on the slide. Atransversely-movable slide orcarriage 4l is mounted in ways in the slide 36, and is advanced by aspring 42, and retracted by a cam 43 on the mainshaft, acting through anarm 44 affixed to a rock-shaft 45, which carries an arm 46 extendingbehind a shoulder of the slide 4l. This slide 4l supports the tool 47.

The operation of the parts thus far described is as follows:Air-pressure admitted to the barrel 3 moves a blank a into position tobe taken by the jaws l2. The arm l1 swings toward the chuck with theblank, but pauses just before reaching the chuck long enough to allowthe blank already in the chuck to be discharged into the bent tube 1S.The arm or carrier then moves to position directly in front of thechuck, which has opened, and the plunger advances, and the end-piece28', acting against the jewel, pushes the blank out of the jaws and intothe chuck, and the latter closes on the blank and the plunger isretracted. The carrier returns, and the toolslide 4l moves in carryingthe tool the desired distance to remove a portion of the stock of theblank to form ashoulder. Then the slide 36 advances and feeds the toolalong, so that it turns down the blank and leaves a shoulder. Thetool-slides then return to their normal position, the chuck opens, andthe blank is discharged in the form shown in Fig. l1. In assembling theparts of a watch-move-1 ment, this shouldered blank is fitted t0 arecess in one of the watch-movernent plates b (see Fig. l0), and thejewel it contains forms a seat for one end of apinion c. This pinion isshouldered near its ends, and the shoulders 1 should fit snugly to thejewels in the settings a., so there shall be no undue endwise play. Thedistance between the shoulders is likely to vary in different pieces,and this present machine has been devised to compensate for this inturning down one of the settings. One setting is cut to standard form,and it willbe obvious that, by turning down the other setting more orless in its length, the distance between the jewels will be varied bythe engagement of the shoulder with the watchmovement plate. Therefore Ihave provided in this machine for regulating the turning of the blank bythe distance between the shoulders of the pinion. The means employed toeffect this are as follows: Referring first to Fig. 5, the feederhereinbefore referred to carries a calipering device, one member 48 ofwhich is carried by the rod 28, and the other member 49 by the sleeve29. A thumbscrew 50 is fastened in the rod 2S and extends through a slotin the sleeve 29, and, by looscning this thumb-screw, the rod and sleevemay be adjusted relatively to each other. The collar 32 on the sleevecarries a pin 5l, adapted to act against a lever 52, extendingvertically and pivoted at the middle to the head 10. This lever engagesa horizontal lever 53 of the same length and pivoted at the middle tothe bed. The latter lever engages a stop-plug 54, adapted to slide in abushing in the bed 2 (see Fig. 7), and said plug limits the advance ofthe tool-slide 36, which carries a screw 55 arranged to abut the saidplug. Said screw is supported in a pendent arm of a bar 56 extendinglongitudinally of the slide, and fastened at its opposite end to a block57, supported in the slide and connected therewith by a bolt 58. Thestop-plug 54 is brought to the proper position through its connectionwith the plunger, and is locked at this position through the followingmeans: A rod 59 is fitted to slide transversely in the bed 2, and isadapted to bind against the plug 54. A rock shaft 60, journaled in thebed 2 is cut out at one part (see Fig. 4) to receive the opposite end ofthe rod 59, so that, upon turning the said rock-shaft, the rod iscrowded against the stop-plug. The rock-shaft carries an arm 6l, whichbears on a cam 62, and thereby the shaft is rocked and the stop-pluglocked at the proper time.

In the operation of the machine, the pinion, as c (Fig. 9), for whichthe pipings are being prepared, is set in the calipering devices 48 and49, as shown in said figure, and the set-screw 50 having been loosened,the rod 28 is adjusted until the calipering devices bear against theshoulders pf the pinion, and the set-screw 50 is then tightened. It willbe seen that, by this adjustment, the distance of the end-piece 28 fromthe chuck is determined. Hence the feeder, in order to drive the blankhome in the chuck, will be required to move more or less according asthis endpiece is farther away or nearer to the chuck. The movement ofthe feeder is transferred through the connections described to thestopplug 54, and its position is determined accordingly, so that thetravel of the tool is checked at the proper position to leave a shoulderon the blank corresponding with the distance between the shoulders ofthe pinion. In this manner, variations in the pinions are com- IIOpensated for, so that-in the watch-movement there will be no undueendwise play or endshake.

The caliper is adjusted to different grades of pinions, as follows: Themember 49 is carried in a slide 70, which has a head 71 with a pin 72projecting from its inner side. The slide 70 fits a bushing 73 in thecaliper frame, and the bushing has a flange with a hole which receivesthe pin 72. An annulus 74 lits loosely on the bushing behind the flange,and is formed with a series of depressions 75 (see Fig. 8), graded indepth, for the pin 72 to engage. A set-screw 7 6 in the caliper framebinds the slide 70 at different positions to which it may be brought. Byloosening this set-screw and turning the annulus 74, the calipermember/.t9 may be adjusted, its position being determined by theengagement of the pin 72 in one of the depressions 75.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A machine of the character described, comprising in its constructiona plunger for carrying the work into the chuck, a calipering devicewhich determines the extent of movement of the plunger, and means forrebulating the travel of the tool by the movement of the plunger.

2. In a machine of the character described, the combination of a chuckhaving a`yielding base, a plunger for carrying the work into the chuck,a caliperi'ng device which determines the extent of movement of theplunger, and means for regulating the travel of the tool by the movementof the plunger.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 8th day of Sep- 4o tember,A.l D. 1893.

DUANE H. CHURCH.

Witnesses :l

(J. F. BROWN, F. PARKER DAVIS.

